A Theoretical Study of the Heavy and Light Hole Properties of Cd1-xZnxS Quantum Dot Superlattices

Saber Marzougui; Nabil Safta

doi:doi:10.11648/j.ijmsa.20140305.30

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A Theoretical Study of the Heavy and Light Hole Properties of Cd1-xZnxS Quantum Dot Superlattices

Saber Marzougui, Nabil Safta

Published in International Journal of Materials Science and Applications (Volume 3, Issue 5)

Received: 27 August 2014 Accepted: 11 September 2014 Published: 30 September 2014

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Abstract

This work reports on a theoretical investigation of superlattices based on Cd1-xZnxS quantum dots embedded in an insulating material. This system, considered as a series of flattened cylindrical quantum dots with a finite barrier at the boundary, is studied using the tight binding approximation. The ground miniband width and the longitudinal effective mass, in the case of the heavy and light holes, have been computed as a function of zinc composition for different inter-quantum dot separations. An analysis of the results shows that the Zn composition x = 0.8 are appropriate to give rise a superlattice behavior for the light holes. As for the heavy holes, it has been showed the strong localization character of theses carriers in the Cd1-xZnxS nanostructures.

Published in	International Journal of Materials Science and Applications (Volume 3, Issue 5)
DOI	10.11648/j.ijmsa.20140305.30
Page(s)	274-278
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2014. Published by Science Publishing Group

Keywords

Quantum Dots, Superlattices, Cd1-xZnxS, Heavy and Light Holes, Tight Binding Approximation, Specific Devices

References

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APA Style

Saber Marzougui, Nabil Safta. (2014). A Theoretical Study of the Heavy and Light Hole Properties of Cd1-xZnxS Quantum Dot Superlattices. International Journal of Materials Science and Applications, 3(5), 274-278. https://doi.org/10.11648/j.ijmsa.20140305.30

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ACS Style

Saber Marzougui; Nabil Safta. A Theoretical Study of the Heavy and Light Hole Properties of Cd1-xZnxS Quantum Dot Superlattices. Int. J. Mater. Sci. Appl. 2014, 3(5), 274-278. doi: 10.11648/j.ijmsa.20140305.30

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AMA Style

Saber Marzougui, Nabil Safta. A Theoretical Study of the Heavy and Light Hole Properties of Cd1-xZnxS Quantum Dot Superlattices. Int J Mater Sci Appl. 2014;3(5):274-278. doi: 10.11648/j.ijmsa.20140305.30

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@article{10.11648/j.ijmsa.20140305.30,
  author = {Saber Marzougui and Nabil Safta},
  title = {A Theoretical Study of the Heavy and Light Hole Properties of Cd1-xZnxS Quantum Dot Superlattices},
  journal = {International Journal of Materials Science and Applications},
  volume = {3},
  number = {5},
  pages = {274-278},
  doi = {10.11648/j.ijmsa.20140305.30},
  url = {https://doi.org/10.11648/j.ijmsa.20140305.30},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20140305.30},
  abstract = {This work reports on a theoretical investigation of superlattices based on Cd1-xZnxS quantum dots embedded in an insulating material. This system, considered as a series of flattened cylindrical quantum dots with a finite barrier at the boundary, is studied using the tight binding approximation. The ground miniband width and the longitudinal effective mass, in the case of the heavy and light holes, have been computed as a function of zinc composition for different inter-quantum dot separations. An analysis of the results shows that the Zn composition x = 0.8 are appropriate to give rise a superlattice behavior for the light holes. As for the heavy holes, it has been showed the strong localization character of theses carriers in the Cd1-xZnxS nanostructures.},
 year = {2014}
}

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TY  - JOUR
T1  - A Theoretical Study of the Heavy and Light Hole Properties of Cd1-xZnxS Quantum Dot Superlattices
AU  - Saber Marzougui
AU  - Nabil Safta
Y1  - 2014/09/30
PY  - 2014
N1  - https://doi.org/10.11648/j.ijmsa.20140305.30
DO  - 10.11648/j.ijmsa.20140305.30
T2  - International Journal of Materials Science and Applications
JF  - International Journal of Materials Science and Applications
JO  - International Journal of Materials Science and Applications
SP  - 274
EP  - 278
PB  - Science Publishing Group
SN  - 2327-2643
UR  - https://doi.org/10.11648/j.ijmsa.20140305.30
AB  - This work reports on a theoretical investigation of superlattices based on Cd1-xZnxS quantum dots embedded in an insulating material. This system, considered as a series of flattened cylindrical quantum dots with a finite barrier at the boundary, is studied using the tight binding approximation. The ground miniband width and the longitudinal effective mass, in the case of the heavy and light holes, have been computed as a function of zinc composition for different inter-quantum dot separations. An analysis of the results shows that the Zn composition x = 0.8 are appropriate to give rise a superlattice behavior for the light holes. As for the heavy holes, it has been showed the strong localization character of theses carriers in the Cd1-xZnxS nanostructures.
VL  - 3
IS  - 5
ER  -

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Author Information

Saber Marzougui

Unité de Physique Quantique, Faculté des Sciences, Université de Monastir, Monastir, Tunisia
Nabil Safta

Unité de Physique Quantique, Faculté des Sciences, Université de Monastir, Monastir, Tunisia

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Plain Text BibTeX RIS

APA Style

Saber Marzougui, Nabil Safta. (2014). A Theoretical Study of the Heavy and Light Hole Properties of Cd1-xZnxS Quantum Dot Superlattices. International Journal of Materials Science and Applications, 3(5), 274-278. https://doi.org/10.11648/j.ijmsa.20140305.30

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ACS Style

Saber Marzougui; Nabil Safta. A Theoretical Study of the Heavy and Light Hole Properties of Cd1-xZnxS Quantum Dot Superlattices. Int. J. Mater. Sci. Appl. 2014, 3(5), 274-278. doi: 10.11648/j.ijmsa.20140305.30

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AMA Style

Saber Marzougui, Nabil Safta. A Theoretical Study of the Heavy and Light Hole Properties of Cd1-xZnxS Quantum Dot Superlattices. Int J Mater Sci Appl. 2014;3(5):274-278. doi: 10.11648/j.ijmsa.20140305.30

Copy | Download

@article{10.11648/j.ijmsa.20140305.30,
  author = {Saber Marzougui and Nabil Safta},
  title = {A Theoretical Study of the Heavy and Light Hole Properties of Cd1-xZnxS Quantum Dot Superlattices},
  journal = {International Journal of Materials Science and Applications},
  volume = {3},
  number = {5},
  pages = {274-278},
  doi = {10.11648/j.ijmsa.20140305.30},
  url = {https://doi.org/10.11648/j.ijmsa.20140305.30},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20140305.30},
  abstract = {This work reports on a theoretical investigation of superlattices based on Cd1-xZnxS quantum dots embedded in an insulating material. This system, considered as a series of flattened cylindrical quantum dots with a finite barrier at the boundary, is studied using the tight binding approximation. The ground miniband width and the longitudinal effective mass, in the case of the heavy and light holes, have been computed as a function of zinc composition for different inter-quantum dot separations. An analysis of the results shows that the Zn composition x = 0.8 are appropriate to give rise a superlattice behavior for the light holes. As for the heavy holes, it has been showed the strong localization character of theses carriers in the Cd1-xZnxS nanostructures.},
 year = {2014}
}

Copy | Download

TY  - JOUR
T1  - A Theoretical Study of the Heavy and Light Hole Properties of Cd1-xZnxS Quantum Dot Superlattices
AU  - Saber Marzougui
AU  - Nabil Safta
Y1  - 2014/09/30
PY  - 2014
N1  - https://doi.org/10.11648/j.ijmsa.20140305.30
DO  - 10.11648/j.ijmsa.20140305.30
T2  - International Journal of Materials Science and Applications
JF  - International Journal of Materials Science and Applications
JO  - International Journal of Materials Science and Applications
SP  - 274
EP  - 278
PB  - Science Publishing Group
SN  - 2327-2643
UR  - https://doi.org/10.11648/j.ijmsa.20140305.30
AB  - This work reports on a theoretical investigation of superlattices based on Cd1-xZnxS quantum dots embedded in an insulating material. This system, considered as a series of flattened cylindrical quantum dots with a finite barrier at the boundary, is studied using the tight binding approximation. The ground miniband width and the longitudinal effective mass, in the case of the heavy and light holes, have been computed as a function of zinc composition for different inter-quantum dot separations. An analysis of the results shows that the Zn composition x = 0.8 are appropriate to give rise a superlattice behavior for the light holes. As for the heavy holes, it has been showed the strong localization character of theses carriers in the Cd1-xZnxS nanostructures.
VL  - 3
IS  - 5
ER  -

Copy | Download